I am becoming desperate about my problem, almost changed every small to major details in engine. fixed all what theoretically could cause this problem, still same happens everytime. Here goes: engine stops working when im changing gear(its manual), but before next gear, it shuts down while yet in neutral. it never happens while car is cold, but after 15-20 minutes of work it always happens . re installed programs, didnot help. changed lot of different sensors. no one has any idea what could cause this. please help

if vehicle does not move it wont shut down in neutral even after 1 hour. everything is stock, no modifications. havenot tried pumping clutch. it can be issue with a clutch? had it scanned a few times, nothing.